Mechanical movement



I To @ZZ whom, it may concern:

Be it known that I, PIERRE F. JoNTE, of

UNITED STATES Ferrini Urraca PIERRE r. Jorrit, or CINCINNATI, oIIIo.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent No. 281,078, dated July 10,1883.

Application filed December 7, 1892. (No model.) i

Cincinnati, county of Hamilton, and State of Ohio, have invented a newand Improved Mechanical Movement; and I do hereby declare that thefollowing is a full, clear, and exact description ofthe same, referencebeing had to the annexed drawings, making a part of this specification,in which# Figure 1 represents a side elevation. Fig. 2 is a plan ofthesame. Fig. 3 is an enlarged vertical section through the shaftlongituditudinally; and Fig. 4 is a transverse section of thepinionsleeve, taken in. line a: of Fig. 3.

Similar letters of reference indicate like parts.

The nature of my invention relates to a mechanical movement which hasfor its object the transmission of a reciprocating into a continuousrotary motion. It is also provided with a brake attachment for stoppingthe motion, when required, by extending the stroke of the reciprocatingarm, as will be more fully described hereinafter.

Among other features of importance may be mentioned that in this devicethe speed can be changed without stopping the machine, that the motionmay be reversed when so desired, and that any required number ofrevolutions can be given the main shaft to one movement of thereciprocating arm.

My invention consists, mainly, of two pinions having their hubs formedinto sleeves which receive in their interiors another sleeve or ringprovided with a groove cut longitudinally, the bottom of which is madeto incline with respect to the center, which groove receives a looseroller, which is held in engagement by a suitable spring, whereby theincline sleeve and the pinionsleeve are held firmly together whenactuated in one direction, and released from each other when the motionis reversed.

It further consists in having the reciprocating arm provided with twotoothed racks placed on opposite sides of the shaft and engaging withthe two pinions above mentioned; also, of a friction-roller rotatingfreely on the shaft and engaging with the reciprocating arm, which itholds in its working position.

In construction my invention is as follows: A is the reciprocating arm.B is the handle or point for the attachment of the actuating part. At c.a. are toothed racks, which are either fastened securely to arm A, ormade of the same piece, as may be desired. main shaftto be rotated, isencircled by the hollow arbor D, and is a part and continuation of thefly-wheel E. At F F is seen the toothed pinions which engage withtoothed racks c c.

G. Within these are seen the two incline sleeves H H', which are held toarbor D by setscrews d, and are provided with a wide groove, h,runninglongitudinally,having the lower side center, and each receives aloose hard roller,

h, having some play at the deepest part of the with slight force up theincline, tending to mentioned. The friction-roller l rotates freely onthe hollow arbor D and guides the action of the reciprocating arm A,engaging with it by its periphery entering grooves ai, as seen in Fig.3. The brake-block J is made to conform to the shape of the periphery ofthe ily-wheel E, and is permanently attached to arm A. The iiy-wheel Eis provided with a set-screw, c, surmounted by a disk, c', whereby itmay be fastened to shaft C.

In operation my invention is as follows: It will be observed that as theracks o c. are on opposite sides of the shaft the pinions are constantlymoving in opposite directions. The inclines are made to dip both in onedirection. As pinion F is moved forward the roller 71, is forced up theincline by means of the spring, so that it makes a firm lock betweenpinionsleeve G and incline sleeve H, thus carrying arbor D with it. Atthe same time pinion F is moving in the opposite direction, looseningits roller, so that pinionsleeve G releases incline sleeve H', thushaving no effect on D, to which both incline sleeves are firmlyattached.

On reversing the motion of the arm A the motions of both pinions arealso reversed, and this causes G to engage with H and to move arbor D ina forward direction. Thus by actuating arm A backward and forward ingreater or less degrees it produces in arbor D and shaft C a continuousrotary motion. When it is required to stop the motion of the machine,the arm A is moved forward to its full eX- tent, when the brake-block Jcomes in contact C iS the The inions are a )art ofthe )inionsleeves G 6othereof inclined slightly with respect to the keep the same engaged withthe two sl eeves last 7o IOO with ily-wheel E, stopping it by thefriction resulting. When it is desired to have the shaft stand stillwhile the fly-wheel is in motion, the screw c is loosened. It is only inthis case that the arbor D is made use of. Should this feature beunnecessary, the incline sleeves H H may be fastened directly to shaftC.

Among other uses this device may be applied to is that ofsewing-machines, wherein it displaces the ordinary crank, wheel, andbelt. In this case the handle B is extended and attached by any suitablepivot -joint to the treadle, while arbor D is placed directly on theinain shaft of the sewing-machine. In this case the device whereby theshaft C may be left at rest while wheel E is in motion becomes ofspecial value, as in threading bobbins it is desirable not to run thesewing-machine, but only wheel E, which engages with the bobbin-Winder.

To change the speed of this machine it is only necessary to pivot thepitman farther from or nearer to the center of motion of the treadle,which is equivalent to changing` the stroke of arm A without changingthe sweep of the treadle.

To reverse the motion of shaft C it is only necessary to remove inclinesleeves H I-I and put them on in reverse positions, which will give areverse result. By constructing one pinion larger than the other andsetting the toothed racks correspondingly distant from the center avariable speed will be given arbor D at each alternate movement of armA.

-Having thus described niy invention, WhatI claim as new, and desire tosecure by-Letters Patent, is-

l. A mechanical movement wherein longitudinally reciprocating arm A hastoothed racks a a, engaging with pinions'FF of pinion-sleeves G G andincline sleeves H H', lockrollers h', and springs h2, as and for thepurpose set forth.

2. The friction-roller I, in combination with longitudinally-reciprocating arm A, having racks a a', pinions F F, which mesh withsaid racks, pinion-sleeves G G, incline sleeves H H, lock-rollers h',and springs h2, substantially as set forth.

- 3. Ihe brake-block J, attached to arm A, in

combination with wheel E, receiving motion from shaft C, as hereindescribed.

PIERRE F. JONTE.

A Attest: T. VAN KANNEL, H. BErrENHAUs.

